2-144007291-T-C

Variant summary

Our verdict is Benign. Variant got -8 ACMG points: 0P and 8B. BP4_StrongBS2

The NM_001376312.2(GTDC1):ā€‹c.766A>Gā€‹(p.Ser256Gly) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000311 in 1,613,248 control chromosomes in the GnomAD database, including 6 homozygotes. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (ā˜…).

Frequency

Genomes: š‘“ 0.00043 ( 0 hom., cov: 32)
Exomes š‘“: 0.00030 ( 6 hom. )

Consequence

GTDC1
NM_001376312.2 missense

Scores

19

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.53
Variant links:
Genes affected
GTDC1 (HGNC:20887): (glycosyltransferase like domain containing 1) Predicted to enable glycosyltransferase activity. [provided by Alliance of Genome Resources, Apr 2022]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -8 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.011017561).
BS2
High Homozygotes in GnomAdExome4 at 6 gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
GTDC1NM_001376312.2 linkuse as main transcriptc.766A>G p.Ser256Gly missense_variant 7/12 ENST00000682281.1 NP_001363241.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
GTDC1ENST00000682281.1 linkuse as main transcriptc.766A>G p.Ser256Gly missense_variant 7/12 NM_001376312.2 ENSP00000507713.1 Q4AE62-1

Frequencies

GnomAD3 genomes
AF:
0.000434
AC:
66
AN:
152080
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000241
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00125
Gnomad ASJ
AF:
0.000288
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.0000942
Gnomad MID
AF:
0.00949
Gnomad NFE
AF:
0.000412
Gnomad OTH
AF:
0.00191
GnomAD3 exomes
AF:
0.000359
AC:
90
AN:
250606
Hom.:
1
AF XY:
0.000340
AC XY:
46
AN XY:
135436
show subpopulations
Gnomad AFR exome
AF:
0.000123
Gnomad AMR exome
AF:
0.000987
Gnomad ASJ exome
AF:
0.000696
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000981
Gnomad FIN exome
AF:
0.000139
Gnomad NFE exome
AF:
0.000292
Gnomad OTH exome
AF:
0.00131
GnomAD4 exome
AF:
0.000298
AC:
436
AN:
1461050
Hom.:
6
Cov.:
31
AF XY:
0.000297
AC XY:
216
AN XY:
726854
show subpopulations
Gnomad4 AFR exome
AF:
0.000449
Gnomad4 AMR exome
AF:
0.00108
Gnomad4 ASJ exome
AF:
0.000690
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000812
Gnomad4 FIN exome
AF:
0.000131
Gnomad4 NFE exome
AF:
0.000199
Gnomad4 OTH exome
AF:
0.000729
GnomAD4 genome
AF:
0.000427
AC:
65
AN:
152198
Hom.:
0
Cov.:
32
AF XY:
0.000417
AC XY:
31
AN XY:
74406
show subpopulations
Gnomad4 AFR
AF:
0.000241
Gnomad4 AMR
AF:
0.00124
Gnomad4 ASJ
AF:
0.000288
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.0000942
Gnomad4 NFE
AF:
0.000412
Gnomad4 OTH
AF:
0.00189
Alfa
AF:
0.000462
Hom.:
2
Bravo
AF:
0.000555
TwinsUK
AF:
0.000270
AC:
1
ALSPAC
AF:
0.00
AC:
0
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000233
AC:
2
ExAC
AF:
0.000338
AC:
41
Asia WGS
AF:
0.00115
AC:
4
AN:
3478
EpiCase
AF:
0.000437
EpiControl
AF:
0.000415

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsAug 23, 2021The c.766A>G (p.S256G) alteration is located in exon 7 (coding exon 4) of the GTDC1 gene. This alteration results from a A to G substitution at nucleotide position 766, causing the serine (S) at amino acid position 256 to be replaced by a glycine (G). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.071
BayesDel_addAF
Benign
-0.49
T
BayesDel_noAF
Benign
-0.54
CADD
Benign
9.7
DANN
Benign
0.88
DEOGEN2
Benign
0.010
T;T;.;.;.;T;T;.
Eigen
Benign
-0.83
Eigen_PC
Benign
-0.74
FATHMM_MKL
Benign
0.75
D
LIST_S2
Benign
0.63
.;.;T;T;T;T;.;T
M_CAP
Benign
0.0075
T
MetaRNN
Benign
0.011
T;T;T;T;T;T;T;T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
0.83
L;L;L;.;L;L;L;.
MutationTaster
Benign
1.0
N;N;N;N;N;N;N;N
PrimateAI
Benign
0.21
T
PROVEAN
Benign
-0.92
N;N;N;.;N;N;N;N
REVEL
Benign
0.017
Sift
Benign
0.17
T;T;T;.;T;T;T;T
Sift4G
Benign
0.37
T;T;T;T;T;T;T;T
Polyphen
0.020
B;B;B;.;.;B;B;.
Vest4
0.20
MVP
0.10
MPC
0.043
ClinPred
0.0023
T
GERP RS
1.6
Varity_R
0.070
gMVP
0.18

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.0
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs145763899; hg19: chr2-144764858; API